[atlbob]

I've got about 7100 miles on my truck now, and when I drop it off for service on Friday, I'll have them refill my DEF blue which is under about an 1/8th as shown on the gauge. This will be my second refill. I'd say about 75% of the miles I've done have been highway -- I'm curious as to what others are seeing in terms of DEF usage. I've probably done about 1000 miles max of towing in this (8x4 U-Haul, lightly loaded).

 

[Dunrollin]

Not much to add as I am nowhere near topping off but I saw this tip somewhere (probably here) to get the Ford DEF nozzle to assure no mess, so I bought one on Amazon for $7.29. It is stored under the back seat.

Isn't def supposed to be consumed at a rate of about 1% of fuel?

 

[wreedsvt]

I have 4000 miles on my truck and I am little under half of the DEF tank full.

 

[Darrell Michel]

I had to add 2.5 gallons at 4,000 miles and then another 2.5 at 8,000. It is now at the 1/2 full mark with a little over 9,000 miles.

 

[mascrappo]

I don't want to start an online feud, but my dad buys DEF blue at Walmart and I get Motorcraft DEF from my local dealer for same price. This is just a FYI, not pushing one or the other as they both work. Just saying my Ford dealer is competitive and I would not be saving money shopping Walmart.

 

[Vandal]

I had been buying AutoZone Brand. I live ten miles from a Buccees, and they sell DEF at the fuel pump. Just insert nozzle and fill up.

 

[Blue-jean]

I buy mine at the pump from the local Kenworth dealership, freshest around.